<template>
  <div>
    <!-- 商品分类三级列表 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread：面包屑，带有x的结构的-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!--分类的面包屑-->
            <li class="with-x" v-if="searchParams.categoryName">{{ searchParams.categoryName }}<i @click="removeCategoryName">×</i></li>
            <!--关键字的面包屑-->
            <li class="with-x" v-if="searchParams.keyword">{{ searchParams.keyword }}<i @click="removeKeyword">×</i></li>
            <!--品牌的面包屑-->
            <li class="with-x" v-if="searchParams.trademark">{{ searchParams.trademark.split(':')[1] }}<i @click="removeTrademark">×</i></li>
            <!--平台的售卖的属性值展示-->
            <li class="with-x" v-for="(attrValue, index) in searchParams.props" :key="index">{{ attrValue.split(':')[1] }}<i @click="removeAttr(index)">×</i></li>
          </ul>
        </div>

        <!--selector-->
        <SearchSelector @trademarkInfo="trademarkInfo" @attrInfo="attrInfo" />

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <li class="active">
                  <a href="#">综合</a>
                </li>
                <li>
                  <a href="#">销量</a>
                </li>
                <li>
                  <a href="#">新品</a>
                </li>
                <li>
                  <a href="#">评价</a>
                </li>
                <li>
                  <a href="#">价格⬆</a>
                </li>
                <li>
                  <a href="#">价格⬇</a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 销售的产品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="(good) in goodsList" :key="good.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <a href="item.html" target="_blank"><img :src="good.defaultImg" /></a>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>&nbsp;
                      <i>{{good.price}}</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a target="_blank" href="item.html" title="促销信息，下单即赠送三个月CIBN视频会员卡！【小米电视新品4A 58 火爆预约中】">{{good.title}}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="success-cart.html" target="_blank" class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <div class="fr page">
            <div class="sui-pagination clearfix">
              <ul>
                <li class="prev disabled">
                  <a href="#">«上一页</a>
                </li>
                <li class="active">
                  <a href="#">1</a>
                </li>
                <li>
                  <a href="#">2</a>
                </li>
                <li>
                  <a href="#">3</a>
                </li>
                <li>
                  <a href="#">4</a>
                </li>
                <li>
                  <a href="#">5</a>
                </li>
                <li class="dotted"><span>...</span></li>
                <li class="next">
                  <a href="#">下一页»</a>
                </li>
              </ul>
              <div><span>共10页&nbsp;</span></div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import SearchSelector from './SearchSelector/SearchSelector';
import { mapGetters } from 'vuex';
export default {
  name: 'Search',
  components: {
    SearchSelector,
  },
  data() {
    return {
      //带给服务器的参数
      searchParams: {
        category1Id: '', //一级分类
        category2Id: '', //二级分类
        category3Id: '', //三级分类
        categoryName: '', //分类名称
        keyword: '', //搜索关键字
        // props: ['1:1700-2799:价格', '2:6.65-6.74英寸:屏幕尺寸'], //商品属性的数组
        props: [],
        trademark: '', //品牌
        order: '', //排序方式 1: 综合,2: 价格 asc: 升序,desc: 降序  示例: "1:desc"
        pageNo: 1, //当前页码
        pageSize: 10, //每页显示几条数据
      },
    };
  },
  //当组件挂载完毕之前执行一次【先于mounted之前】
  beforeMount() {
    //复杂的写法
    // this.searchParams.category1Id = this.$route.query.category1Id;
    // this.searchParams.category2Id = this.$route.query.category2Id;
    // this.searchParams.category3Id = this.$route.query.category3Id;
    // this.searchParams.keyword = this.$route.params.keyword;
    // Object.assign:ES6新增的语法：合并对象
    // 在发请求之前，把接口需要传递的参数进行整理（在给服务器发请求之前，把参数整理好，服务器就会返回你查询的数据）
    Object.assign(this.searchParams, this.$route.query, this.$route.params);
  },
  //仅仅执行一次
  mounted() {
    //在发请求之前带给服务器的参数【searchParams参数发生变化有数值带给服务器】
    this.getSearchData();
  },
  computed: {
    //mapGetters里面的写法：传递的是数组，因为getters计算是没有划分模块的【home, search】
    ...mapGetters(['goodsList']),
  },
  //数据监听：监听组件实例身上的属性的属性值变化
  watch: {
    //监听路由的信息是否发生变化，如果发生变化，再次发起请求
    $route(newValue, oldValue) {
      //再次发请求之前整理带给服务器参数
      Object.assign(this.searchParams, this.$route.query, this.$route.params);
      //再次发起请求
      this.getSearchData();
      // 每一次请求完毕，应该把响应的1、2、3级分类的id置空，让它接收下一次响应的1、2、3的id
      // 为什么分类的名字与关键字不用清理：因为每一次路由发生变化的时候，都会给他赋予新的数据
      this.searchParams.category1Id = undefined;
      this.searchParams.category2Id = undefined;
      this.searchParams.category3Id = undefined;
    }
  },
  methods: {
    // 向服务器发请求，获取search模块的数据（根据参数不同，返回不同的数据进行展示）
    // 把这次请求封装为一个函数，当你需要在调用的时候调用即可
    getSearchData() {
      this.$store.dispatch('getSearchList', this.searchParams);
    },
    //删除分类的名字
    removeCategoryName() {
      //把带给服务器的分类参数置空，还需要向服务器发请求
      //带给服务器参数说明（是可有可无的）：如果属性值为空的字符串还是会把相应的字段带给服务器
      //但是你把相应的字段变为undefined，当前的这个字段不会带给服务器
      this.searchParams.categoryName = undefined;
      this.searchParams.category1Id = undefined;
      this.searchParams.category2Id = undefined;
      this.searchParams.category3Id = undefined;
      this.getSearchData();
      //地址栏也需要修改:进行路由跳转(现在的路由跳转只是跳转到自己这里)
      //如果有params参数，不应删除，应该带过去
      //严谨一点：本意是删除query，如果路径当中出现了params参数，不应该删除，路由跳转的时候应该带过去
      if (this.$route.params) {
        this.$router.push({name: "search", params: this.$route.params});
      }
    },
    //删除搜索关键字
    removeKeyword() {
      //给服务器带的参数searchParams的keyword置空
      this.searchParams.keyword = undefined;
      //再次发请求
      this.getSearchData();
      //通知兄弟组件Header清除关键字
      this.$bus.$emit("clear");
      //进行路由的跳转
      //如果有query参数，也应该带上
      if(this.$route.query) {
        this.$router.push({name:'search', query: this.$route.query})
      }
    },
    //自定义事件的回调
    trademarkInfo(trademark) {
      //1:整理品牌字段的参数 "ID:品牌名称"
      this.searchParams.trademark  = `${trademark.tmId}:${trademark.tmName}`;
      //2:再次发请求获取search模块数据
      this.getSearchData();
    },
    //移除品牌面包屑
    removeTrademark() {
      //将品牌信息置空然后再次发请求
      this.searchParams.trademark = undefined;
      this.getSearchData();
    },
    //收集平台属性的回调函数(自定义事件)
    attrInfo(attr, attrValue) {
      //['属性ID:属性值:属性名']
      let props = `${attr.attrId}:${attrValue}:${attr.attrName}`;
      //数组去重 -1代表没有, 没有就往里push
      //if语句里面只有一行代码：可以省略大花括号
      if (this.searchParams.props.indexOf(props) === -1) this.searchParams.props.push(props);
      //再次发请求
      this.getSearchData();
    },

    //删除售卖属性
    removeAttr(index) {
      //再次整理参数
      this.searchParams.props.splice(index, 1);
      //再次发请求
      this.getSearchData();
    }
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  i {
                    margin-left: -5px;
                  }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;

        .sui-pagination {
          margin: 18px 0;

          ul {
            margin-left: 0;
            margin-bottom: 0;
            vertical-align: middle;
            width: 490px;
            float: left;

            li {
              line-height: 18px;
              display: inline-block;

              a {
                position: relative;
                float: left;
                line-height: 18px;
                text-decoration: none;
                background-color: #fff;
                border: 1px solid #e0e9ee;
                margin-left: -1px;
                font-size: 14px;
                padding: 9px 18px;
                color: #333;
              }

              &.active {
                a {
                  background-color: #fff;
                  color: #e1251b;
                  border-color: #fff;
                  cursor: default;
                }
              }

              &.prev {
                a {
                  background-color: #fafafa;
                }
              }

              &.disabled {
                a {
                  color: #999;
                  cursor: default;
                }
              }

              &.dotted {
                span {
                  margin-left: -1px;
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  font-size: 14px;
                  border: 0;
                  padding: 9px 18px;
                  color: #333;
                }
              }

              &.next {
                a {
                  background-color: #fafafa;
                }
              }
            }
          }

          div {
            color: #333;
            font-size: 14px;
            float: right;
            width: 241px;
          }
        }
      }
    }
  }
}
</style>